Greatland Resources Ltd (AIM:GGP, OTC:GRLGF, ASX:GGP) says drilling at its West Dome Underground project at Telfer is revealing a larger and richer system, with new results showing wide zones of gold and copper mineralisation across three distinct areas.
The company has completed 19 holes for more than 9,000 metres in its Phase 2 programme, targeting the southern extension of the system ahead of a maiden Mineral Resource estimate due in the March 2026 quarter.
Drilling has confirmed three domains: the Western Stockwork Corridor, a broad sub-vertical zone of stockwork mineralisation, and two high-grade shoots known as the Western Limb and the Eastern Limb.
All three sit within the Lower Limey Unit, a key geological layer at Telfer.
Recent results from the Western Stockwork Corridor include 56.6 metres at 2.24 g/t gold and 1.26% copper from 337 metres, and 82.2 metres at 1.90 g/t gold and 0.31% copper from 360.7 metres.
These wide intercepts sit within zones between 40 and 70 metres in true width and more than 200 metres down dip.
The Western Limb has returned 34.5 metres at 4.06 g/t gold and 0.31% copper from 418.5 metres, while the Eastern Limb produced 30 metres at 5.6 g/t gold and 0.25% copper from 281 metres.
Mineralisation across all three areas remains open. Greatland has added a third diamond drill rig to accelerate work.
Because Telfer already has extensive underground infrastructure that historically supported mining rates above 5 million tonnes per year, the company believes development could be accelerated. A pre-feasibility study is now in progress.
Managing director Shaun Day said drilling “continues to deliver high grades and excellent widths” and the second access drive is well advanced.